Swimming is a physical activity in which the human body stretches its limbs in the water. Many people know that swimming can bring many benefits to their health and want to learn to swim. How many meters is suitable for swimming every day? Come and have a look with me.

How many meters is suitable for swimming every day?

1. How many meters is suitable for swimming every day?

How many meters is suitable for swimming every day? There is no relevant evidence on the Internet. It is better to consult a swimming coach, but the prime time for swimming should be 40 minutes. 40 minutes of exercise can not only achieve a certain exercise effect, but also make people too tired. When swimming, glycogen stored in human muscle and liver is the main substance to provide energy. In the first 20 minutes, the body mainly relies on the heat provided by glycogen to maintain physical fitness; In another 20 minutes, the body will break down fat to provide energy. Therefore, for people who want to lose weight, 40 minutes can play a role in losing weight.

2. Classification of swimming

2. 1, practical swimming

The swimming mode with great value in military, production and life service is called practical swimming. For example, crawl swimming (freestyle), breaststroke, side swimming, diving, treading water (standing swimming), water rescue, military swimming and backstroke.

2.2. Competitive swimming

Competitive swimming refers to swimming events that have specific technical requirements and compete in accordance with swimming competition rules. Since the first Olympic Games (1896), swimming has been included in the official Olympic events. It can be divided into two categories: competitions in swimming pools and competitions in open waters. Such as freestyle, breaststroke, backstroke, butterfly (also known as dolphin swimming) and individual medley composed of these four kinds of swimming, as well as relay swimming competition swimming.

2.3. Synchronized swimming Synchronized swimming is a competitive sport that integrates dance, gymnastics and swimming. There are high requirements for figure, swimsuit, headdress, music and movements. It is divided into single, double and team events.

3. the benefits of swimming

3. 1, enhance myocardial function: all organs are involved, when people exercise in water. Energy consumption is high, and blood circulation is also accelerated, so that more nutrition can be supplied to sports organs. The acceleration of blood speed will increase the load on the heart, make the heart beat faster and contract strongly. People who swim regularly have excellent heart function.

3.2. Strengthen lung function: The strength of lung function is determined by the strength of respiratory muscle function, and breathing mainly depends on the lung. Exercise is one of the effective means to improve and increase vital capacity. Swimming makes people develop respiratory muscles, increase chest circumference, increase vital capacity and open more alveoli when inhaling, which is very beneficial to health.

3.3. Prevent or relieve arteriosclerosis: it is helpful to the blood circulation of the whole body. The skin in the water is cold, and the pressure of the water on the body. The rapid contraction of blood vessels causes a large amount of external blood to enter the heart and deep tissues of the human body, which dilates the blood vessels of internal organs.

Preparations for swimming and fitness

1, swimsuit

Swimsuit and trousers must fit. If it is too big, it is easy to soak in the water when swimming, which will increase the load and resistance of the body and affect the swimming action. The quality should be elastic, and bright or dark colors are better.

2, nose clip

When swimming, water waves often flush water into the nostrils, causing suffocation. Beginners can prepare a nose clip and get rid of the habit of inhaling through the nose.

3. Swimming glasses

Mainly to prevent the occurrence of eye diseases, for beginners, wearing swimming glasses can also open their eyes in the water.

Step 4: Earplugs

It is inevitable that water will flow into the ears when swimming, but the earplugs are light and small and easy to fall off. Beginners should not rely too much on earplugs, but should learn to relax, coordinate and have rhythm.

5. Floating objects

Beginners should bring some floating objects, such as lifebuoys (clothes) and foam paddles, to help with floating exercises.

6, swimming cap

Wear a swimming cap when swimming, so that on the one hand, it can prevent hair from scattering, reduce the damage of pool water to hair, and at the same time, it can also prevent falling hair from blocking the drain pipe of the pool.

Treatment of swimming spasm

1, when people cramp in deep water, keeping calm is the key element; Because panic is not only not conducive to self-help, but also emotional tension will increase the oxygen consumption of the brain and body, thus greatly shortening the time of self-help; At the same time, I can't come up with emergency countermeasures quickly because of my mental stress.

2. If you are not far from the swimming pool, you can go ashore and sit by the pool. When the cramped leg is straight, one hand grabs the toe and pulls it towards the body, and the other hand presses the knee to stretch the muscles at the back of the leg, which can be relieved. Don't rush into the water after relief, stretch and massage for a while, and then go into the water after the discomfort is eliminated.

3. If you are far away from the swimming pool, take a deep breath and pull back. Grab your toes with the hand opposite the cramped leg and pull toward your body. Press the knee with the other hand and stretch the back of the leg. Go ashore and continue to massage and rest after remission.